Air-compressor.



W. G. WILSON.

AIR COMPRESSOR.

APPLICATION FILED FEB. 19, 1906.

Patented Oct. 13, 1908.

2 SHEETS-SHE /shtmeooao W. G. WILSON.

AIR COMPRESSOR.

APPLIGATION FILED FEB.19, 1906 900,81 4. Patented 001;. 13, 1908.

2 SHEETS-SHEET 2.

IIIIIAVIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII awuewtoz UNITED "sTArasPATENT omncn Specification o1 Letters Patent. Application filed.February 19,

me. sum No. 301,789.

To-all whom it may 0mm;

Be it known that I, WrLm G. WILSON, a sub'ect of the King of Great-Britain,-residin in t e city and county of Denver and State o Colorado,have invented certain new and useful Im rovements in Air-Com ressors;and. I do declare the following to lye a full, .clear and exact descrition of the invention, such as will enable ot ers skilled in the art towhich it appertains same, reference being had to the accompanyrencemarked thereon,which form a part of this specification. y I My inventionrelates to improvements in air compressors and specifically to a devicein which water is used as a vehicle to carry the air into the receiverand through the same.

In carrying out the invention I employ a centrifu al I pheric air isintroduced to t e body of water and carried with the latter into thereceiver. The body of water or other liquid in the receiver is such thatthere is always an air s ace above in which the air is compressed.rovision is made, after a given or predeter mined body of water hasaccumulated in the receiver, for drawing off the water as fast as itenters, thus maintaining a uniform quantity of water in the receivingtank. While the water is drawn off the air is tra ped and thecompression of the air is broug t about by thecontinual introduction ofair into the space above the liquid. 1 Having briefly outlined my imroved construction'I will proceed to descri e the same in detailreference bein made to the accom panyingdrawing in w 'ch is illustratedan embodiment thereof. In this drawing, Figure 1 is a-section takenthrough an a paratus illustrating my imrovement. ig. 2 is a sectiontaken on the iine 22 of Fig. 1 Fig. 3 is a perspective view in detail ofone of the nozzles for introducing the air to the chamber of the ump,whereby it is acted on by the stream 0 water. Fi 4 is a view partlyin'section showinga mod' ed form of construction.

The same reference characters indicate the same arts in all the views.

Re erring first to Figs. 1, 2 and 3, let the numeral 5 designate acentrifugal -pum which so far as its general construction is concernedmay be of any approved form. In

to make and use the 1 drawings, and to the letters and figures of pumpso arranged that atmoslarged as sh thisppmp, 6 is the casing; 7 theinduction conduit; 8 the eduction conduit; 9 a controlling valveinterposed between the educt1on conduit and the receiver 10; 12a returncondultleading from the bottom of the rece ver to the supply'tank 13,:in Whichconduit ls-interposeda valve 14;-15 theshaft ofthe1mpeller16,the said shaft bein journaled in a suitable support 17 androvicied with an operating pulley 18. The back wall of-the casing isprovided with an opening 19 around the Impeller shaft, said openingbeingsurrounded an exteriorly protru ller on the side of the pumpcorresponding with the opening 19, is provided with open ended nozzles21, one extremity of each of which projects into the opemn 19, while.the opposite extremity is directe outwardly toward the periphery of thecasing, to facilitate the introduction of air during the action of thepump. The outer extremities of these nozzles are enown at 22, to furtherfacilitate the introduction of air, the said nozzles being ppoperlydirected to produce this result.

ithin the housing 20 is preferably located a fan 23 whose function is todraw atmospheric air 'thereinto and pass it thence to the mductionnozzles.

When the device is in operation the impeller shaft being rapidlyrotated, imparts a correspondin movement to the impeller 19 and the nozzcs 21, whereby liquid as water is drawn from the supply tank 13 upthrough the conduit 7, into the pump chamber, where it is acted on bythe revol impeller. As the water is thrown outwar y into the perifpheryof the casing due to the rotary actlon o the impeller, air is drawn intothe water and forced upwardl therewith into the receiving tank 10. enthe o eration is commenced, the valve 14 shoul be closed until a bod ofwater 24 accumulates in the receiver. he valve 14 is then openedsufliciently to allow only as much water to escape through the pipe 12as enters the receiver through the ipe 8. By virtue of this arrangement,t e water is continually drawn ofi, thus leaving a uniform air spacewithin the receiver, into which the air is forced durn the continuedoperation of the apparatus;

11 the form of construction shown'inFig. 4, the receiving tank will bedesignated 10, the same as in Fig.1 In t casea cen- Patented Oct. "13,100s.

trifugal ump 25 is employed and water is delivered to the bottom of thetank 10 from a conduit 26 leading from the pump, the water beingdelivered to a nozzle 27 projecting into an inverted funnel-shapedhousing 28 surrounding an induction opening or port in the bottom of thetank 10. When the pum is in 0 eration, the water is driven throu ii thein uction opening with great speed, t e air being forced with the wateror other liquid into the tank 10. As soon as a sufiicient quantity ofWater has accumulated in the receiver 10 of this form of construction, avalve 29 in a return conduit 30 is opened and the liquid returns to thepump 25. In this way the water is used over and over again for aircompression purposes. This is simply another form of constructionwhereby air may be compressed through the employment of a liquidvehicle.

Attention is called to the fact that in the form of construction shownin Fig. 1 the supply tank 13 may be dispensed with, and the conduit 12connected directly with the pipe or conduit 7.

acac a Having thus described my invention, what I claim is:

The combination with a receiving tank, a supply tank, a centrifugal pumparran ed to take water from the supply tank an discharge it into thereceiving tank, the said pum comprising a casing, a hollow rotatable 1me ler located within the casing, a water in uction conduit connectedwith the casing and communicating with the impeller on one side,open-ended air inlet nozzles connected with the impeller on the oppositeside from the induction conduit and extending throu h the casing to anair opening, the sald nozz es being radially dis osed rotating with theimeller, whereby t e air and water enter the impeller from oppositedirections and are forced together into the receiving tank.

In testimony whereof I afiix my signature in presence of two witnesses.

'- WYLIE G. WILSON.

Witnesses:

- A. J. OBRIEN,

DENA 'NELsoN.

